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        content="火星科技 合肥火星 合肥火星科技 合肥火星科技有限公司 leaflet leaflet框架 leaflet开发 cesium cesium开发 cesium框架 三维 地球 模型  gis marsgis 地图离线 地图开发 地图框架 地图外包 框架 开发 外包  地图离线 二维地图 三维地图 全景漫游 地理信息系统 云GIS 三维GIS GIS平台 WebGIS" />

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  <title>三维地图 | Mars3D | 三维地图 | 火星科技 | 合肥火星科技有限公司</title>

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  <script type="text/javascript" src="../lib/include-lib.js" libpath="../lib/" include="jquery,jquery.range,font-awesome,bootstrap,bootstrap-checkbox,layer,haoutil,turf,mars3d"></script>

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<body class="dark">
  <!--加载前进行操作提示，优化用户体验-->
  <div id="mask" class="signmask" onclick="removeMask()"></div>

  <div id="mars3dContainer" class="mars3d-container"></div>

  <div class="infoview" id="toolbar">
    <input id="viewAircraft" type="button" class="btn btn-primary" value="跟踪视角" />
    <input id="viewTopDown" type="button" class="btn btn-primary" value="上方视角" />
    <input id="viewSide" type="button" class="btn btn-primary" value="侧方视角" />
  </div>

  <script src="./js/common.js"></script>
  <script type="text/javascript">
    'use script' //开发环境建议开启严格模式

    var map
    var graphicLayer

    var pathEntity = null

    function initMap(options) {
      //合并属性参数，可覆盖config.json中的对应配置
      var mapOptions = mars3d.Util.merge(options, {
        scene: {
          center: { lat: 32.550222, lng: 117.366824, alt: 2696, heading: 273, pitch: -67 },
        },
        control: {
          animation: true, //是否创建动画小器件，左下角仪表
          timeline: true, //是否显示时间线控件
        },
      })

      //创建三维地球场景
      map = new mars3d.Map('mars3dContainer', mapOptions)

      //创建矢量数据图层
      graphicLayer = new mars3d.layer.GraphicLayer()
      map.addLayer(graphicLayer)

      $.getJSON('http://data.marsgis.cn/file/apidemo/flyline.json', function (data) {
        initPath(data)
      })

      //添加事件
      $('#viewAircraft').on('click', function () {
        map.trackedEntity = pathEntity.entity

        pathEntity.flyToPoint({
          radius: 500, //距离目标点的距离
          heading: 40,
          pitch: -50,
          duration: 0.01,
        })
      })

      $('#viewTopDown').on('click', function () {
        map.trackedEntity = undefined

        map.flyToPoint(pathEntity.positionShow, {
          radius: 2000,
          heading: -90,
          pitch: -89,
        })
      })
      $('#viewSide').on('click', function () {
        map.trackedEntity = undefined

        map.flyToPoint(pathEntity.positionShow, {
          radius: 3000,
          heading: -90,
          pitch: -25,
        })
      })
    }

    function initPath(data) {
      var property = new Cesium.SampledPositionProperty()

      var start
      var stop
      for (var i = 0, len = data.length; i < len; i++) {
        var item = data[i]

        var lng = Number(item.x.toFixed(6))
        var lat = Number(item.y.toFixed(6))
        var hei = item.z
        var time = item.time

        var position = null
        if (lng && lat) {
          position = Cesium.Cartesian3.fromDegrees(lng, lat, hei)
        }
        var juliaDate = null
        if (time) {
          juliaDate = Cesium.JulianDate.fromIso8601(time)
        }
        if (position && juliaDate) {
          property.addSample(juliaDate, position)
        }

        if (i == 0) {
          start = juliaDate
        } else if (i == len - 1) {
          stop = juliaDate
        }

        var primitive = new mars3d.graphic.PointPrimitive({
          position: position,
          style: {
            pixelSize: 4,
            color: '#cccccc',
          },
          popup: '编号:' + item.id + '<br/>时间:' + time,
        })
        graphicLayer.addGraphic(primitive)
      }

      //设置时钟属性
      map.clock.startTime = start.clone()
      map.clock.stopTime = stop.clone()
      map.clock.currentTime = start.clone()
      map.clock.clockRange = Cesium.ClockRange.LOOP_STOP
      map.clock.multiplier = 5

      if (map.viewer.timeline) {
        map.viewer.timeline.zoomTo(start, stop)
      }

      //创建path对象
      pathEntity = new mars3d.graphic.PathEntity({
        position: property,
        orientation: new Cesium.VelocityOrientationProperty(property),
        style: {
          resolution: 1,
          leadTime: 0,
          trailTime: 3600,
          color: '#ff0000',
          width: 3,
        },
        label: {
          text: '飞机1号',
          font_size: 19,
          font_family: '楷体',
          color: Cesium.Color.AZURE,
          outline: true,
          outlineColor: Cesium.Color.BLACK,
          outlineWidth: 2,
          horizontalOrigin: Cesium.HorizontalOrigin.CENTER,
          verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
          pixelOffset: new Cesium.Cartesian2(10, -25), //偏移量
        },
        model: {
          url: 'http://data.marsgis.cn/gltf/mars/wrj.glb',
          scale: 0.1,
          minimumPixelSize: 20,
        },
        popup: '飞行1号',
      })
      graphicLayer.addGraphic(pathEntity)

      //圆锥追踪体
      var coneTrack = new mars3d.graphic.ConeTrack({
        position: property,
        style: {
          length: 100,
          angle: 12, //半场角度
          color: '#ff0000',
          opacity: 0.5,
        },
      })
      graphicLayer.addGraphic(coneTrack)
    }
  </script>
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